Checked
Post Offices in Middlesex County, MA
96 post offices · Data as of 09/23/2026
Post offices on this page
Post offices in Middlesex County at a glance
- There are 82 post offices in Middlesex County, or roughly one for every 19,980 people.
- That is 20% fewer per resident than the Massachusetts average of 0.63 per 10,000.
- No other county in Massachusetts has as many post offices.
- Nearby, Worcester County (59), Essex County (42) and Suffolk County (31) also have post offices listed.
Post offices in Middlesex County
A to Z · Page 1 of 4
- Acton Post OfficeZIP 017207 Post Office Square, Acton, MA
- Acton Post OfficeZIP 01720241 Arlington St, Acton, MA
- Arlington Post OfficeZIP 024761347 Massachusetts Ave, Arlington, MA
- Arlington Post OfficeZIP 0247610 Court St, Arlington, MA
- Arlington Post OfficeZIP 02474240 Massachusetts Ave, Arlington, MA
- Ashland Post OfficeZIP 01721205 Main St, Ashland, MA
- Auburndale Post OfficeZIP 024662122 Commonwealth Ave, Auburndale, MA
- Bedford Post OfficeZIP 01730158 Great Rd, Unit J, Bedford, MA
- Belmont Post OfficeZIP 02478405 Concord Ave, Belmont, MA
- Belmont Post OfficeZIP 02478492 Trapelo Rd, Belmont, MA
- Billerica Center Post OfficeZIP 01821460 Boston Rd, Billerica, MA
- Billerica Post OfficeZIP 01821880 Boston Rd, Billerica, MA
- Billerica Post OfficeZIP 01821460 Boston Rd, Billerica, MA
- Burlington Post OfficeZIP 018035 Bedford St, Burlington, MA
- Cambridge Post OfficeZIP 021391311 Cambridge St, Cambridge, MA
- Cambridge Post OfficeZIP 02142250 Main St, Cambridge, MA
- Cambridge Post OfficeZIP 021401953 Massachusetts Ave, Cambridge, MA
- Cambridge Post OfficeZIP 02141303 Cambridge St, Cambridge, MA
- Cambridge Post OfficeZIP 0213815 Mooney St, Cambridge, MA
- Cambridge Post OfficeZIP 0214191 1st St, Cambridge, MA
- Cambridge Post OfficeZIP 02138125 Mt Auburn St Ste 1, Cambridge, MA
- Carlisle Post OfficeZIP 0174170 Bedford Rd, Carlisle, MA
- Central Square Cambridge Post OfficeZIP 02139770 Massachusetts Ave, Cambridge, MA
- Chelmsford Post OfficeZIP 0182445 Alpine Ln, Chelmsford, MA
- Chestnut Hill Post OfficeZIP 02467136 Commonwealth Ave, Chestnut Hill, MA
- Chestnut Hill Post OfficeZIP 0246712 Middlesex Rd, Chestnut Hill, MA
- Chestnut Hill Post OfficeZIP 02467136 Commonwealth Ave, Chestnut Hill, MA
- Concord Post OfficeZIP 0174234 Walden St, Concord, MA
- Concord Post OfficeZIP 0174234 Walden St, Concord, MA
- Concord Post OfficeZIP 0174234 Walden St, Concord, MA
Frequently asked questions
- How many post offices are in Middlesex County, MA?
- There are 96 post offices in Middlesex County as of 09/23/2026.